Washer-stapling machine.



PATENTED APR.26, 1904. W. MAIER & G. M.=HOWE. WASHERSTA-PLING MACHINE.

- W Annmnxon'innb 113,119.00. no menu.

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Witnesses.

PATBNTED APR. 26,1904.

No. 758,212. W. MAIER Gz'G. M. HOWE. I

WASHER STAPLING MACHINE. APPLICATION runn 12.23. 1900. no 1 :01am z sums-sum 2.

Witnesses. r

45 the plate.

UNITED STATES Patented April 26, 1904.

PATENT OFFICE.

:VVILLIAM MAIER AND GEORGE M. HOWE, OF BUFFALO, NEW YORK, AS-

SIGNOR TO R. HOFFELD & COMPANY, OF BUFFALO, NEW YORK.

WASHER-STAPLINQ MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 758,212, dated April 26, 1904.

Application filedApril 2S, 1900.

Erie and State of New York, have invented certain new and useful Improvements in VVasher-Stapling Machines, of which the following is a specification. 1

Our invention relates to a washer-stapling machine; and the object of the invention is to provide a stapling-machine with an attachment for supporting the ends of a strip of leather or other material when bent into annular form with said ends in abutting position while a fastening-staple is passed through them, all of which will be fully and clearly hereinafter described and claimed, reference being had to the accompanying drawings, in Wl1lCl1- Figure 1 represents a front elevation of a wire-stapling machine equipped with our improvedsupport. Fig. 2 is an enlarged front view of the supporting-block and its attachments, also showing a strip bent into position to be acted upon by the stapling mechanism. Fig. 3 is an enlarged front view of the supporting-block and its attachments, also showing a fragment of the stapling mechanism and a strip having its ends united by a staple. Fig. i is an enlarged front view of the supporting-block and its attachments, also showing a completed washer, the washer being partly in section to'show the form of the staple. Fig. 5 is'a top plan view of the block and its attachments. Fig. 6 is asection on or about line a a, Fig. 5. Fig. 7 is a side view of the lower movable support and its operating-rod. Fig. 8 is a top View of the lower movable support. Fig. 9 is a top View of an anvil-bar havinga modified form of concavity. Fig. 10 is a vertical transverse section through the block on line Z) 6, Fig. 5. Fig. 11 is adetached front view of the block with the various parts adapted to be attached thereto removed. Fig. 12 is a detached front view of Fig. 13 is a detached top plan view of the block shown in Fig. 11. Fig. 14: is a vertical longitudinal section on line a c, Fig. 5. Fig. 15 is a detached side view of the anvil-bar.

sired position.

Serial No. 13,862. (No model.)

' The stapling-machine is of anyv of the wellknown forms and has a base 1, head 2, wirespool 3, and operating mechanism, including a staple former and presser foot 4, having a vertical slot 5, in which a staple-driver 6 operates.

8 represents a block whiohhas two substantially parallel recesses or depressions 9 extending down into its top surface and longitudinally through the block from the front to the rear thereof. This block- 8 is secured to the frame of the stapling-machine in any suitable way and beneath the operating mechanism. A supporting-plate 10 is adjustably secured to the front end of the block 8 by the screws 11, which fit in the longitudinally-extending top recesses 9 and screw into the openings 12 in the plate. These screws are provided with shoulders 13, which abut against the rear side of the block, and square or similarly-formed headsl lc to receivea wrench or other tool for adjusting purposes. To adjust the plate 10, the screws 11 are loosened and moved in the recesses 9 sufiiciently to raise or lower the plate to the desired point and are then tightened to retain the plate in its de- (See Figs. 5 and 6.)

The plate 10 has two horizontal ears or extensions 15, which project therefrom and serve as top supports for the ends of the washerstrip, substantially as shown in Figs. 2 and 3.

The block 8 is provided with a middle vertical depression or recess 16, located between the recesses 9 and preferably extending substantially parallel with said recesses 9, and an anvil-bar 17 is detachably secured in said recess 16 by a screw 18 or other locking means. The end of the anvil-bar projects out from the block and has a top concavity 19, which forms a clenching-recess for the lower ends of the staples. The projecting end of the anvil-bar is arranged in a lower plane than the cars 15, and the ears are sufiiciently separated from each other to permit the passage of the presserfoot and staple-driver. (See Fig. 3.)

I The plate 10 is vertically adjusted by loosening the screws 11 and moving them in the required direction in the recesses 9. This affords means for varying the distance between the anvil end and the extensions 15 to provide for washer-strips of different size and form.

The lower support 20, which is preferably a metal .strip having its ends bent diagonally upward, is mounted upon a rod 21, which is vertically adjustable in the machine-frame. and 'a disk or plate 22 at the lower end of said rodrests upon the operators knee. The support is shown in a lower inoperative position in Fig. 1 and in an elevated operative position in Fig. 3. The concavity in the anvil end may be formed as shown in Fig. 4, as shown in the modified form in Fig. 9, or any other desired form, so long as it serves to clench the staple ends. A vertical rib 23 extends transversely across the anvil-bar in the rear of the concavity 19, (see Figs. 5, 9, and 15,) which when the anvil-bar is in place is vertically alined with the vertical plate 10, as shown in Fig. 5. The object of this rib is to form a wall to prevent the ends of the leather strip turning back while being bent into contact.

The projecting portion of the anvil may be slotted, as shown at 24 in Fig. 5, or not, as'in the modified form in Fig. 9. The object of the slot is to provide a shoulder for the lower ends of the staple to strike against, and thus more perfectly form the same. However, it has been found by experience that the slot is not an absolute necessity, as the staples are clenched about as well with an unslotted anvil. The operation of the invention is as follows: The stapling-machine being started, a strip of leather or similar material is bent and the ends inserted and pushed up between the anvil and holding extensions 15, the presser-foot comes down, forcing the ends firmly upon the anvil and into abutting position, and the stapledriver then drives a staple home. When a rather stifi or heavy strip is inserted, the lower support is pressed up by the knee to assist in pushing the ends up into position substantially as shown in Fig. 3. Usually, however, the strips are sufiiciently pliable to render this portion of the mechanism unnecessary.

of the operation is greatly increased and the cost diminished in proportion.

WVe claim as our invention 1. Amachine for stapling washers and similar articles, comprising a stapling mechanism, an anvil, a plate vertically adjustable relatively to said anvil and provided with workholding members located above and upon opposite sides of the anvil, in combination with a movably-mounted work-support located under the anvil and adapted to be operated to force the work against the said work-holding members with the ends thereof in contact with each other, upon the anvil.

2. A machine for stapling washers and similar articles, oomprisinga stapling mechanism, a block having depressions, an anvil projecting from the front end of the block, a plate provided with work-holding members located .above and upon opposite sides of the anvil and screws adjustably fitted in the depressions in the block for securing the plate to the block, substantially as set forth.

3. .A Washer-stapling machine having a stapling mechanism, a block, an anvil projecting laterally from the block, a plate attached to the block and having lateral washer-holding ears arranged above and upon opposite sides of the anvil and a vertically-adj ustable support to receive the work mounted beneath the anvil, substantially as set forth.

4:. In a machine for stapling washers and similar articles, a stapling mechanism, an anvil-block having longitudinally-extending top depressions, an anvil carried thereby, a plate provided with work-holding members located above and upon opposite sides of the anvil, and screws or like fastenings passing through the plate and the depressions in the block for adjustably securing the plates to the block, substantially as set forth.

5. A stapling-machine having an attachment for supporting strips in annular position while the ends are united by staples, comprising a block having three parallel top depressions, screws fitted in the two side depressions, a plate adjustably secured to the block by said screws and having horizontally-ex tending holding-ears and an anvil-bar secured to the middle depression and having a concaved clenching portion, as set forth.

' WILLIAM MAIER.

GEORGE M. HOWE.

Witnesses:

A. J. SANes'rER, L. M. BILLINGS. 

